However, when Ujfalusi cast it, the Bone Cell seemed to have become a skeleton fortress as the densely packed white bones engulfed the entire building such that not even a single fly could escape, let alone a human.
After casting the Bone Cell, Ujfalusi chanted two incantations, and a large vortex door appeared out of thin air. A massive number of Undead creatures then surged out from the door like a white tidal wave, gushing towards the crowd.
Those Undead creatures were naturally insignificant to the Legendary powerhouses, but there was limited space in the hall, and the exterior was covered by the sturdy Bone Cell. When the Undead creatures surged in, they seemed to have immediately filled the space in the hall. The leaders of the forces opposite had to cope with a large number of Undead creatures while guarding against Norfeller's sudden attack. Hence, they were somewhat in a mess.